Changeset 340 for trunk/python

Timestamp:

01/31/05 21:28:33 (20 years ago)

Author:

kil064

Message:

add unit arg to constructor to take advantage of new reader feature

File:

• trunk/python/scantable.py (modified) (5 diffs)

trunk/python/scantable.py

@@ -9 +9 @@
     """
     
-    def __init__(self, filename):
+    def __init__(self, filename, unit=None):
         """
         Create a scantable from a saved one or make a reference
@@ -21 +21 @@
                          [advanced] a reference to an existing
                          scantable
+           unit:         brightness unit; must be consistent with K or Jy.
+                         Over-rides the default selected by the reader
+                         (input rpfits/sdfits/ms) or replaces the value
+                         in existing scantables
         """
         self._vb = rcParams['verbose']
@@ -28 +32 @@
         if isinstance(filename,sdtable):
             sdtable.__init__(self, filename)            
+            if unit is not None:
+                print 'Setting brightness unit to ', unit
+                sdtable.set_fluxunit(unit)                       
         else:
             try:
@@ -38 +45 @@
                 if stat.S_ISREG(st(filename+'/table.info')[stat.ST_MODE]):
                     sdtable.__init__(self, filename)
+                    if unit is not None:
+                        print 'Setting brightness unit to ', unit
+                        self.set_fluxunit(unit)                       
                 else:
                     print 'The given file is not a valid asap table'
@@ -45 +55 @@
 
                 from asap._asap import sdreader
-                r = sdreader(filename,-1,-1)
+                ifSel = -1
+                beamSel = -1
+                if unit is None:
+                    unit = ""
+                r = sdreader(filename,unit,ifSel,beamSel)
                 print 'Importing data...'
                 r.read([-1])